Patents Examined by Marion E. McCamish
  • Patent number: 6108903
    Abstract: A connecting member of circuit substrates includes an organic porous base material provided with tackfree films on both sides, through-holes disposed at requested places which are filled with conductive resin compound up to the surface of the tackfree films. This structure enables inner-via-hole connection and can therefore attain a connecting member of circuit substrates and an electrical connector of high reliability and high quality. By using a connecting member of circuit substrates including the organic porous base material provided with tackfree films on both sides and through-holes disposed at requested places which are filled with conductive resin compound up to the surface of the tackfree films, it is possible to form a high-multilayer substrate easily from double sided boards or four-layer substrates which can be manufactured rather stably.
    Type: Grant
    Filed: January 4, 1996
    Date of Patent: August 29, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Seiichi Nakatani, Akihito Hatakeyama, Kouji Kawakita, Hiroshi Sogou, Tatsuo Ogawa, Tamao Kojima
  • Patent number: 6074722
    Abstract: The invention is a material suitable for use as the wall of a pressurized container such as the gas bag of a lighter-than-air vehicle. In detail the invention includes a first flexible ply having filamentary material comprising unidirectional filamentary material at 0 and 90 degrees to each other. A second flexible layer is included having unidirectional filamentary material at 0 and 90 degrees to each other and at 45 degrees to the filamentary material of the first ply. The strain value at failure for the filamentary material of the second ply is greater than the 0 and 90 degree filamentary material of the first layer. The first and second plies are bonded together by a resin. Preferably, additional a film of gas impermeable material and a ultra violet radiation resistant material are bonded to the first two plies.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: June 13, 2000
    Assignee: Lockheed Martin Corporation
    Inventor: Robert S. Cuccias
  • Patent number: 6045648
    Abstract: Multilayered film and film based assembly which are environmentally-compatible, and which exhibit one or more desirable characteristics of polyvinyl chloride (PVC) film and film based assemblies, such as clarity, flexibility and toughness, but without the environmental and health hazards associated with PVC materials, are provided. Also provided is a method of preparing such film and film based assembly.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 4, 2000
    Assignee: Minnesta Mining and Manufacturing Company
    Inventors: Charlotte M. Palmgren, Craig S. Chamberlain, Ching-Long Tsai, Daryl D. Dressler, Jon M. Nornberg, Dan L. Fanselow, Raymond L. Ferguson, Walton J. Hammar
  • Patent number: 6046110
    Abstract: A copper-based metal polishing solution comprises a water-soluble organic acid capable of reaction with copper to form a copper complex compound which is unlikely to be dissolved in water and has a mechanical strength lower than that of copper. The polishing solution also contains polishing abrasive grains and water. The polishing solution of the particular composition does not dissolve at all copper or a copper alloy when a copper or copper alloy film is immersed in the polishing solution, and permits polishing the copper or copper alloy film at a practical rate in the polishing step.
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: April 4, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideaki Hirabayashi, Naoaki Sakurai
  • Patent number: 6040358
    Abstract: Inks for ink jet printers contain an aqueous carrier medium; a colorant that is insoluble in the aqueous carrier, a polymer dispersant; and a linear polymer additive selected from the group consisting of an water soluble, elastomeric ABA block polymer comprising an elastomeric B block and non-elastomeric A blocks; anionic polymers selected from neutralized acrylic and methacrylic acid polymers; cationic polymers selected from neutralized or quaternized amine polymers; water-dispersible .beta.-diketone containing polymers and ethylene oxide containing polymers.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: March 21, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Loretta Ann Grezzo Page, Harry Joseph Spinelli, Waifong Liew Anton
  • Patent number: 6030686
    Abstract: A non-woven fabric having improved absorbent characteristics. The fabric has three different fiber arrays which are interconnected to produce a unique fiber distribution in the fabric.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: February 29, 2000
    Assignee: McNeil-PPC, Inc.
    Inventors: Susan Lynn Suehr, Linda J. McMeekin, James E. Knox, Frank J. Flesch
  • Patent number: 6015618
    Abstract: A composite yarn comprised of a chain stitch yarn knitted from a yarn A and at least an inlay yarn of a yarn B inserted into the chain stitch yarn along a longitudinal direction thereof. Since the chain stitch yarn and the inlay yarn are surely interlaced with each other in the composite yarn, there is little chance that the chain stitch yarn and the inlay yarn are separated in use. A preferable apparatus for manufacturing the composite yarn in accordance with the present invention may include individual winding mechanisms downstream of each knitting station in a warp knitting machine.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: January 18, 2000
    Assignee: Firster Co., Ltd.
    Inventor: Hajime Orima
  • Patent number: 6013361
    Abstract: A novel materials technology has been developed and demonstrated for providing a high modulus composite material for use to F. and above. This material can be produced at 5-20% of the cost of refractory materials, and has higher structural properties. This technology successfully resolves the problem of "thermal shock" or "ply lift," which limits traditional high temperature laminates (such as graphite/polyimide and graphite/phenolic) to temperatures of F. in thicker (0.25" and above) laminates. The technology disclosed herein is an enabling technology for the nose for the External Tank (ET) of the Space Shuttle, and has been shown to be capable of withstanding the severe environments encountered by the nose cone through wind tunnel testing, high temperature subcomponent testing, and full scale structural, dynamic, acoustic, and damage tolerance testing.
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: January 11, 2000
    Assignee: Lockheed Martin Corporation
    Inventors: Ellis C. Seal, Robert William Biggs, Jr., Venu Prasad Bodepudi, John A. Cranston
  • Patent number: 6001189
    Abstract: A method for wet processing of a semiconductor-containing substrate that reduces contamination in the wet process by removing undesired sources of gas contamination, the method comprising: pumping a processing liquid through a degasifier, exposing the semiconductor wafer, in a vessel, to the degasified processing liquid; and optionally recirculating the processing liquid through the degasifier and back into the vessel.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: December 14, 1999
    Assignee: Micron Technology, Inc.
    Inventor: J. Brett Rolfson
  • Patent number: 5997986
    Abstract: Apertured plastic films comprise a stretchable thermoplastic polymeric material having a plurality of micro-holes defined by a network of fiber-like elements. The films are produced by directing fluids, especially water, against the upper surface of a starting film in the form of columnar streams in a contact zone, while the film is supported on a backing element. The films of the invention are useful as covering materials for absorbent products such as diapers, wound dressings and sanitary napkins.
    Type: Grant
    Filed: December 11, 1996
    Date of Patent: December 7, 1999
    Assignee: Chicopee
    Inventors: Mordechai Turi, Edmund Z. DeRossett, Ching-Yun M. Yang
  • Patent number: 5969004
    Abstract: A method of making an emulsion ink is provided. The method includes mixing an ink precursor and processing the ink precursor in a homogenizer to form an emulsion ink. The ink precursor includes a pigment, water, a film forming polymer, an oil and, preferably, a pH dependent thickener and a base.
    Type: Grant
    Filed: October 15, 1993
    Date of Patent: October 19, 1999
    Assignee: The Gillette Company
    Inventor: Rachel M. Loftin
  • Patent number: 5955175
    Abstract: A textile material having thermal image masking or suppression in the mid and far infra-red region without compromising the effectiveness of visual and near IR camouflage or comfort level, or the effectiveness, and mobility of a person. Specifically the invention is directed to an air permeable, moisture vapor transmissive, waterproof, heat reflecting material consisting essentially of at least one metallized microporous membrane, with an oleophobic coating over the metallized portions thereof. This membrane is laminated to at least one other layer or textile backing material such as woven, nonwoven or knitted nylon, polyester, cotton, silk, etc. or additional microporous layers, in which the metal in the metallized membrane forms a discontinuous layer on the surface and on the pore walls adjacent the surface of the microporous membrane.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: September 21, 1999
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Gregory D. Culler
  • Patent number: 5948524
    Abstract: The invention relates to a composition including an engineering resin and wood fiber composite that can be used in the form of a linear extrudate or thermoplastic pellet used to manufacture structural members. The resin/wood fiber composite structural members can be manufactured in an extrusion process or an injection molding process as a linear extrudate or pellet that can have a cross-section of any arbitrary shape, or can be a regular geometric shape and have a volume of at least about 12 mm.sup.3. Preferably the pellet is a right cylindrical pellet having a minimum radius of about 1.5 mm and a minimum length of 1 mm weighing at least 14 mg. The invention also relates to the environmentally sensitive recycle of waste streams. The resin/wood fiber composite can contain an intentional recycle of a waste stream including polymer flakes, polymer particles, or wood fiber as well as adhesives, paint, or preservatives.
    Type: Grant
    Filed: January 8, 1996
    Date of Patent: September 7, 1999
    Assignee: Andersen Corporation
    Inventors: Kasyap V. Seethamraju, Michael J. Deaner
  • Patent number: 5928741
    Abstract: Compositions, methods, and apparatus for manufacturing sheets having a highly inorganically filled matrix. Suitable inorganically filled mixtures are prepared by mixing together an organic polymer binder, water, one or more aggregate materials, fibers, and optional admixtures in the correct proportions in order to form a sheet which has the desired performance criteria. The inorganically filled mixtures are formed into sheets by first extruding the mixtures and the passing the extruded materials between a set of rollers. The rolled sheets are dried in an accelerated manner to form a substantially hardened sheet, such as by heated rollers and/or a drying chamber. The inorganically filled sheets may have properties substantially similar to sheets presently made from traditional materials like paper, paperboard, polystyrene, plastic, or metal. Such sheets can be rolled, pressed, scored, perforated, folded, and glued.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 27, 1999
    Assignee: E. Khashoggi Industries, LLC
    Inventors: Per Just Andersen, Simon K. Hodson
  • Patent number: 5922445
    Abstract: A sheet-like composite material which is obtained by coating or impregnating a fibrous base material with an elastic polymeric substance, in which the fibers constituting the fibrous base material and the elastic polymeric substance are prevented from bonding with each other, and which is extremely flexible and has excellent wear resistance and an extremely high peel strength, which material may be produced for example by applying a hydrophobicizing treatment to the fibrous base material, then impregnating or coating a solution of the elastic polymeric substance to which a hydrophilic silicone has been added, and wet solidifying.
    Type: Grant
    Filed: June 14, 1995
    Date of Patent: July 13, 1999
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Minoru Yoshida, Shinichi Okajima, Minoru Fukui
  • Patent number: 5911926
    Abstract: A porous material of a polytetrafluoroethylene (PTFE), which can retain at least 90% of 0.109 .mu.m latex spheres and has a flow rate (IPA flow rate) of at least 0.6 ml/cm.sup.2 /min as measured with isopropyl alcohol under a differential pressure of 1 kg/cm.sup.2. A process for the production of a porous material of PTFE, which comprises, after forming a molded article from fine powder of PTFE by paste extrusion, (1) sintering the molded article, (2) rolling up the molded article thus sintered and heat-treating it at a temperature lower than the melting point of the polytetrafluoroethylene in a state as rolled up, and then (3) stretching the molded article thus heat-treated in at least an uniaxial direction. The porous material of PTFE according to the present invention has micropores and good permeability and particularly is excellent in performance of retaining fine particles.
    Type: Grant
    Filed: January 3, 1995
    Date of Patent: June 15, 1999
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Akira Harada, Atsushi Uno, Shousuke Yamanouchi, Akira Nishimura
  • Patent number: 5908914
    Abstract: This invention relates to benzylic ether phenolic resole resins prepared in a sealed reaction vessel and their uses. The benzylic ether phenolic resole resins are prepared by heating phenol and an aldehyde in a sealed reaction vessel in the presence of a divalent metal catalyst without removing water generated by the reaction until an appropriate endpoint for the resin is reached. The benzylic ether phenolic resole resins produced by the process are preferably free or essentially free of unreacted formaldehyde and can be used in the resin component of phenolic-urethane foundry binders to make foundry cores and/or molds by the cold-box and no-bake processes. The cores and/or molds are used for making metal castings.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: June 1, 1999
    Assignee: Ashland Inc.
    Inventors: Thomas Edward Dando, William Rexford Dunnavant, Robert Bernard Fechter, Heimo Josef Langer
  • Patent number: 5905100
    Abstract: A novel composition and process are disclosed for forming crosslinked gels at elevated temperatures utilizing a novel crosslinking agent system containing hexamethylenetetramine, a water dispersible aminobenzoic acid compound or phenol, an acrylamide-containing polymer, and water.
    Type: Grant
    Filed: March 10, 1992
    Date of Patent: May 18, 1999
    Assignee: Phillips Petroleum Company
    Inventor: Ahmad Moradi-Araghi
  • Patent number: 5900445
    Abstract: An erasable ink composition contains a water-insoluble polymeric dye obtained by copolymerizing ethylenically unsaturated monomers at least one of which possesses a dye moiety covalently bonded thereto. The ink is intended for use in any of a variety of marking instruments, in particular, a ball-point pen.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: May 4, 1999
    Assignee: BIC Corporation
    Inventors: Wayne A. Chandler, David C. Villiger, Aiying Wang, Jeffery H. Banning, Barry W. Chadwick
  • Patent number: 5899786
    Abstract: Non-woven fiber fabrics are described, suitable for use in self-supporting dust filter units having at least one passage (10) defined by wall portions (12) made from air permeable fiber fabric through which wall portions (12) air can pass a d be drawn off along the passage (10) but which prevent the passage therethrough of dust and/or other debris carried by the air. The non-woven fabrics are blends of high temperature resistant fibers. A preferred blend consists of 50% by weight polyimide fibers and 50% by weight aramid fibers, but may include glass fibers, polytetrafuoroethylene fibers, or others and may optionally include an amount of heat activated fibers having a relatively high melting point for example, polyphenylene sulphide fibers.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: May 4, 1999
    Assignee: Texon UK Limited
    Inventor: Anthony Thomas Greatorex